7
unmusical
4
unmelodious
4
jarring
3
boisterous
3
brassy
3
bristly
3
brutish
3
discordant
3
dissonant
3
grating
3
harsh
2
blatant
2
bulky
2
coarse
2
corpulent
2
gruff
2
inharmonious
2
rasping
2
rusty
2
strident
11 years ago|1.3k views|share |citing 
APASmart Define. (2015). mellifluous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/mellifluous/thesaurus/antonyms
ChicagoSmart Define. 2015. "mellifluous thesaurus" https://smartdefine.org/mellifluous/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2015, mellifluous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/mellifluous/thesaurus/antonyms>.
MLASmart Define. "mellifluous thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/mellifluous/thesaurus/antonyms>